13318932197 has 2 divisors, whose sum is σ = 13318932198. Its totient is φ = 13318932196.

The previous prime is 13318932157. The next prime is 13318932233. The reversal of 13318932197 is 79123981331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8162399716 + 5156532481 = 90346^2 + 71809^2 .

It is a cyclic number.

It is not a de Polignac number, because 13318932197 - 2¹⁰ = 13318931173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13318932127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6659466098 + 6659466099.

It is an arithmetic number, because the mean of its divisors is an integer number (6659466099).

Almost surely, 2^13318932197 is an apocalyptic number.

It is an amenable number.

13318932197 is a deficient number, since it is larger than the sum of its proper divisors (1).

13318932197 is an equidigital number, since it uses as much as digits as its factorization.

13318932197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 47.

The spelling of 13318932197 in words is "thirteen billion, three hundred eighteen million, nine hundred thirty-two thousand, one hundred ninety-seven".